Printing plate and reinforced carrier therefor



AAug.12,1947. "WHNAU .2,425,338

PRINTINGAPLATE ND REINFORCED CARRIER THEREFOR v l Filed Aug..A 15, 1942P,VFIEE. F F155. l f ya Patented Aug. 12, 1947 PRINTING PLATE ANDREINFRCED CARRIER THEREFOR Wilmer H. Nau, South Euclid, Ohio, assignorto Addressograph--Multigraph Corporation, Cleve'- land, Ohio, acorporation-of Delaware Application August 13, 1942, Serial N0.-454,1679

sv Claims. (C1. i- 369i This invention relatesto printing devices-thatembody carriers for printing plates and, desirably, index cards, suchcards bearing impressions from at least selectedv of'the type charactersprovided on the printingV plates, and this invention primarily has to dowith such carriers and plates and .the retention of' theprinting plateson the carriers therefor.

Itis quite advantageous to effectively reenforce printing devicecarriers of the aforesaid character for so to do enables such carriers`and the printing devices ofwhich they are a part to effectivelywithstand the stresses and'` strains to which they are subjected. inuses to which they are put as, for example, during the insertion ofindex cards and' plates into the carriers therefor and also during. thepassage of the assembled printing devices through .the machines in whichthey are adapted to be Iused'. Moreover, since printing. device carriersofv the character to which this invention pertains are usuallysubstantially rectangular in .outline so that one dimension thereofislonger thanthe other dimension .thereof; 'it' is advantageous toeffectively reenforce such printingdevices particularly in the.direction ofthe longer extent thereof, and-to enable the foregoing to beaccomplished in a novel and efficientA manner isvamong the importantobjects 'of'this invention.

' Yet* further objects of' this invention are to' form reenforcing ribsin a. printing device carrierparticularly in the portionsthereofwhereatjone or more printing plates are to be installed thereon;:to extendsuch reenforcing portions longitudinally in a substantiallyrectangular carrier'ofgthe aforesaid character; to arrange such portionsfor cooperation with a configuration iinparted toa printing plate(adaptedt'o be inserted intothe carrier on which such portionsareprovided; and to so varrange such portions and meanseffectivegtoretain a printingY plate in engagement therewith that once av printingplate isL associated witlisuch a reenforcingA portion and theJ retainingmeans adapted for coopera-- tiontherewiththe carrier. will beeffectively reenforcedz.particularlyA ini the direction. of. thegreaterrfextent thereof.

lStill-.further objects-1ofthis. invention are to so formY a.. printingplate that is adapted to `be installed in a .carrierfof'the aforesaidcharacter thatitwill embody portions-adapted for cooperationwithIeenforcing portions `aii'ordedin the carrier in which. the plate isadapted'to be received to .form ,flanges along opposite marginal edgesof a substantially rectangular printing pla-te and to spacejoppositefaces of suchflanges' respectively' beneaththe planes in which oppositefaces of the plate are disposed; to sok arrange a printing plate offthe.aforesaidcharacter that retainingmeans adapted to overlie marginalportions. thereof `may be arranged to cooperate therewith inLsuch amanner asV to bespaced welll loeneath- .the relief facesoitypecharacters embossedonthe. plate.;v andito. so formI portions of a.carrier. that` are. adapted to cooperate with flanges or. similarlyformed portions along. opposite edges ofiaprintingplate that only aplate embodying a predetermined configuration can' loeinserted-intolsuchmeans. p v

Other andfurther objectsA of' theV present in ventionwill. be apparent.from the following description.. and claims .andare illustrated in. theaccompanying drawing which, by way of illustration, shows. a preferred,4embodiment. and the principle thereof and what I rnow consider to be.thebest mode. in which I have contemplated applying, that principle.therr embodiments.. of the invention embodyingthe same or equivalentprinciple may. be used and'. structural changes may be. made asdesired-.by those skilledin the artlwithout departing from thepresentinvention and the purview. of. .the appendedfclaims.

In the. drawing,.

Fig. 1 is. a front-elevational'view of a printing deviceembodying myinvention;

Fig. 2is. afront elevational view of a printing platepf: the characteradapted. to |be utilized in the frame'4 shown in'Eig. 1;.

Fig. 3is,a sectionalview of the printingnplate .taken-substantiallyonthe` line 3 3y on Fig. 2;

and.

Y `Figs. 4andl5 are-sectionalldetail views takenV substantially and:respectively onv the lines. 4--4 andi- 5 lon Fig.k 1l

The.. printing device illustrated in theA accompanying. drawing.embodies a frame orcarrier,

generally indicated byv E, on one faceofwhichv aprintingplatePand'anindex card C areadapted to-.be removably retained, 1 The frame` orcar.- rier. F- is; desi-rably formed.'v from a Ysubstantiallyrrectangular.V blank of. sheet. material and may, advantageouslybe;produced in themanner dis.- closed in Berthel'seuPatent No.2,070,573,l pat,- @ted-February- 16, 1937. v It. will beunderstood,`however, n that the frame maybe produced. in other ways withoutdeparting. from the. ambit of thepresentinvention.

YDesirably, the shorter' marginal! edges of"V the printing device-fram'ej are folded 'in `the manner, for example', explained4 inthe'copendin'gajpplication of Carl J. Hueber, Serial No. 450,320, ledJuly 9, 1942, to afford spacing flanges as SF along the shorter marginaledges and on what will be 'referred to hereinafter as the rear face ofthe 'frame or carrier F. Moreover, grooves as G are desirably formedadjacent to and inwardly of the shorter marginal edges of the frame as Fso that the rails afforded on the spacing flanges` as SF on one frame orcarrier that is arranged above a frame or carrier as F may t into thesegrooves to thereby facilitate stacking of the printing devices one uponthe other and to be effective to.

lar frame or carrier as F along the shorter marginal edges thereof, sucharrangements being effective to prevent undesired twisting or bending ofthe printing device carrier of the aforesaid character in transversedirection.

The grooves 'as G are formed in marginal panels PA which are disposedalong the shorter Inarginal edges of the substantially rectangular frameF, these panels being disposed on the front face of the frame and havingthe exposed faces thereof arranged to lie in a substantially commonplane. The portion of the frame or carrier F intermediate the panels asPA is depressed, as explained in the aforesaid copending application ofCarl J. Hueber, Serial No. 450,320, to provide a pocket PI in which theindex card as C is adapted to be disposed and a pocket P2 in which aprinting plate as P is adapted to be disposed, these pockets beingseparated one from the other by an upstanding rib R extendedtransversely across the frame Fand having opposite end portions thereofrespectively merged into the panels PA, the exposed face of the rib Rdesirably lying in the same plane as that in which the exposed faces ofthe panels PA are disposed.

The marginal portion of the blank from which the frame as F is formed,intermediate the panels PA, is desirably folded toward the face of theframe or carrier F to afford a rounded upper edge I along the upper edgeof the frame, the portion of the frame that is so folded terminating ina portion I I that'extends inspaced apart but substantially parallelrelation with the adjacent face of the pocket PI, and this portion IImerges into a crimped portion I2 which is disposed intermediate theportion I I and a ange I3 that is inclined, preferably on a slightradius toward the adjacent face of the pocket PI but which terminates inspacedapart relation therewith so as to enable an index card as C to befreely inserted therebelow, the free marginal edge of an index card soinserted beneath the flange I3 being adapted4 to lie between adjacentfaces of the pocket PI and the formed portion II. The parts that arefolded-over onto the face of the frame F, as just described, aord whatwill be referred to hereinafter as an upper bead UB, and by reason ofthe formation of the crimped portion I2 in this bead UB, whichV crimpedportion is in effect a rib, and the "formation of the bead as UB,effective reenforcement longitudinally of the frame or carrier Fadjacent the upper edge thereof is afforded.

The portion of the frame F that is depressed to afford the pockets PIand P2 is joined along opposite edges'thereof to the panels PA byinclined 4 portions I4 and the bead UB, as best shown in Fig. 1,desirably has the opposite edges thereof terminated in spaced relationwith these inclined portions I4. Moreover the end portions I5 of theflange I3 of the bead UB are desirably extended in substantiallyparallel relation with the adjacent face of the pocket PI so that anenlarged entrance is afforded at, for'evxample, the righthand end of thebead UB as it is viewed in Fig. 1 to facilitate the insertion of themarginal portion of an index card C beneath the flange I3 of the beadUB, the portion I5 provided at the opposite end of the bead UB desirablybeing arranged 2 the lips LI that are struck from the underlying portionof the bottom of the pocket PI and the adjacent vertical wall of the ribR, and these lips as LI are desirably arranged to have the exposed facesthereof disposed in the plane in which the exposed faces of the rib Rand panels PA are disposed. The opposite marginal edges of the lips asLI are desirably slightly inclined upwardly, and such upward inclinationalong the righthand edges of such lips as they are viewed in Fig. 1facilitates the insertion of an index card therebelow. In this respectit will be understood that an index card C is inserted into the bead UBand the lips LI from the right-hand side of the frame as F as it isviewed in Fig. 1, and in order to prevent the leading edge of an indexcard as C from riding up the inclined portion I4 at the left-hand sideof the frame as it is viewed in Fig. 1, a combined stop and retainingmeans SR is afforded by a gusset plate which extends between the exposedfaces of the panel PA and the end of the rib R at the left-hand side ofthe frame F as itis viewed in Fig. 1, this gusset plate being spacedfrom the adjacent face of the pocket PI so that the lower corner at theleading end of an index card C inserted into the carrier may passtherebelow. In order to insure that an index card as C will beeffectively retained in the pocket PI 'once it has been insertedthereinto in the manner just described, a lip L3 is struck from thepanel PA at the right-hand side of the frame as it is viewed in Fig. 1desirably in juxtaposition to the bead UB, this lip LI extendinginwardly from the aforesaid panel PA over the adjacent inclined part I4, and when an index card is inserted into the pocket PI the trailingedge thereof is caused to pass beyond the free marginal edge of the lipL3 so as to thereby enable this free marginal edge to thereafter bepassed beneath this lip.

A lower bead LB is provided along the lower marginal edge of the frame Fby folding a portion of the material of ,the blank from which the frameF is formed over onto the face of the frame F, the opposite end portionsof a bead as LB desirably being spaced slightly inwardly from theinclined parts I4 in the same manner as that in which the end portions-of the bead UB are spaced from these inclined parts. The material ofthenframe from which the blank F that is thus-folded over onto the faceof the frame F to afford the lower bead LB is formed is folded toprovide a rounded edge I6 at the lower edge A of the frame, and the freemarginal portion of apart relation with the plane iny which the adjacent'face of the pocket P2 is disposed.

However, in order to effectively reenforce the frame F along the lowermarginal edge thereof the marginal portion of the frame F immediatelyinwardly of the rounded edge I6 is offset so as to have the exposed facethereof disposed above the plane in which the adjacent face of thepocket P2 is disposed so as to thereby afford a panel I8 that is.connected to the portion of the frame F that affords the bottom of thepocket P2 by an offset portion I9 which is in the nature of a rib andwhich is therefore effective, in cooperation with the configuration ofthe bead LB, to reenforoe the frame F longitudinally and at the loweredge thereof.

While therib R is effective to reenforce the frame `F longitudinallythereof medially between the beads as LB and UB, I have found that byproviding an offset panel 20 in the frame F adjacent the rib Radditional longitudinal reenforcement may be imparted to the frame Fmedially thereof. The panel 20 is formed by offsetting the material .ofthe frame adjacent the rib R and in the portion thereof affording thepocket P2 so that the frontface of the panel 20 lies in the same planeas that in which the front face of .the panel .I8 is disposed, theportion that is so offset toafford the panel 20 being connected to theportion of the material providing the pocket P2 by the offset portion 2|which, like the offset portion I9, is in the nature of a rib and whichtherefore is effective to provide longitudinal reenforcement VYfor theframe longitudinally and substantially medially thereof.

A printing. plate as P is adapted to be inserted into the pocket as P2so as to have opposite mar.- ginal edgesthereof disposed in engagementwith the front faces of the panels I8 and 20 and to this end flanges 22and 23 are formed lalong the opposite longer edges .of the substantiallyrectangular plate as P. Desirably the flanges as 22 and 423 Aare formedon the plate as P by a swaging operation as by rolling, coining orextruding for so to do enables sharp edges and corners to be eliminated,from .the flanges as 22 and 2,3, and moreover .such an operation ineect irons the material .of the plate that is deformed to afford such`flanges so .as to thereby strengthen the same. Moreover, the flanges 22and 23 are arranged .to have opposite faces thereof disposed insubstantially parallel relation one with the other and these oppositefaces of the flanges 22 and 2 3 4a-re'respectively offset or rabbetedbeneath the planes in lwhich lthe opposite faces of the substantiallyflat plate P are disposed, and desirably the opposite faces of theflanges 22 and 23 are equidistantly offset from the respective andadjaanl 4faces of the plate as P.

bestshown in Fig. 4, the flange 23 on the Plate vas P is adapted to beinserted into the space .between the flange II and the front face ofthepanel 1.8, and thismay be effected by slidi112. :the plate 4into the.channel that is thus faffereledr either .from the right-hand end or theleft-hand end of the frame F as it is viewed in Fig. 1. Moreover, lipsas L2 are struck from the adjacentiportion of the panel20 and theadjacent vertical wall of the rib R .to have the exposed faces'thereofextended in the plane in which the exposed face ofthe rib R is disposed,the lips L2 therefore yeifitendng in substantially parallel but spacedyapartrelation Awith the :front face of the panel-.2,0 s o as to therebyenable the flange as 22 on va plate as P to be yinserted into the.channel defined between adjacent faces of the lips L2 and the panel 20,the flange 22 passing into this channel as the plate is passed into thechannel between adjacent faces of the flange I1 and the panel I8. Inthis respect it will be noted that the panels I8 and 20 are offset fromthe bottom of the pocket PI in an amount substantially equal to thespacing of corresponding faces of the flanges 22 and 23 from the face ofthe plate P that is adapted to be engaged with the front face of thebottom of the pocket P2 when the plate is inserted into this pocket inthe manner described hereinabove. Therefore, when a plate as P isinserted into the pocket P2 one face thereof lies against the bottom ofthe pocket P2 and corresponding faces of the flanges 22 and 23respecively engage the front faces of the panels I8 and Desirably, theend portions of the lips as LI and L2 are slightly inclined upwardly toafford enlarged entrances therebelow to facilitate the insertion of aflange as 22 into the .channel between such lips and the adjacent faceof the panel as 20. It will therefore be seen that once a plate as P isinserted into position beneath the lips as L2 and the flange as I'I theplate is held against the face of .the bottom of the pocket P2 and theplate P and the frame F are held against lateral or face to faceseparation.

While in many uses to which a printing device of :the .character towhich this invention pertains may .be put .the inclinedparts I will beeffective to prevent Alongitudinal displacement of a printina` plate asP from the pocket as P2, in many instances it may be desirable toeffectively insure against such longitudinal displacementl of .the platefrom the .pocket P2. In such circum-l stances, spring tongues as ST ofthe character,l for example, disclosed in the aforesaid cependingAapplication .of ,Carl J. Hueber, Serial No. L1.50320, may be .providedat opposite ends of the pocket' P2, such tongues being yieldable anddepressible so as to therebyenable stops as S formed thereon .to ybemoved out of cooperating relation with the adjacent .end of a plate as Pso as to thereby .enable a plate as P to be slid thereover and 'beremoved from :the pocket P2. In this respect it .will be .understood.that one or the other of the spring tongues ST is depressed when aplate las P is adapted to be inserted into a pocket as P2.

'I'.ypecharacters as T are lcustomarily embossed on a printing plate asP in, for example, an embossing .machine of the kind disclosed in DuncanPatent No. 1,519,904, patented December 9, 192.4, or in. a similarapparatus. Plates suitable for suchternbossing are commonly made ofsheet metal or sheet plastic material having suitable embossing.properties and of sufficient-,thickness and innate strength to resistdeformation of printing characters embossed thereon when subjected -toprinting pressure in a printing apparatus. The thickness of such platesAhowever must not exceed that which will impair the embossing ofprinting characters on the plates to appear vin relief on one facethereof and in intaglioon the opposite face, .especially when suchprinting characters are embossed on the plates in embossingmachines ofAthe kind referred to hereinabove and in common use. In practice it haslongbeeneknown that plates of the aforesaid character shouldnot besubstantiallymore than .030 in .thickness and printing plates of theaforesaid character-as these have been long used- 7 in the art and haveranged in thickness between .012 and .020.

Inasmuch as printing devices of the character to which this inventionpertains are often passed seriatim through a machine of the characterdisclosed in the copending application of C'arl J'. Hueber, Serial No.388,998, led April 17, 1941, now Patent No. 2,359,850, patented October10, 1944, a notch as N may advantageously be formed in one of theshorter marginal edges of the frame as F, such a notch desirably beingarranged in the manner described in Gollwitzer Patent No. 2,132,412,patented October 1l, 1938, and being utilized, for example, in themanner described in detail in Gollwitzer Patent No. 2,132,4-214, alsopatented October 11, 1938.

Another very important advantage which accrues from affording flanges as22 and 23 on a plate as P is that such flanges are not only arranged forcooperation with reenforcing arrangements such as those including thepanels I8 and 20, but the spacing of corresponding faces of flanges 22and 23 beneath the face of a printing plate as P on which typecharacters as T are embossed to appear in relief enables the exposedfaces of the retaining devices on the carrier adapted to overliemarginal portions of such a printing plate to be so spaced below theplane in which the relief faces of lthe embossed type characters aredisposed so that the likelihood of objectionable impressions being madefrom such retaining devices is avoided. Thus by referring to Fig. 4 itwill be seen that the exposed faces of the lips as L2 and flange as I1are so spaced beneath the relief faces of the type characters as T thatare embossed on the plate as P that ample clearance is afforded betweensuch relief faces of the type characters and the exposed faces of theretaining devices as the lips L2 and the flange Il, such clearance beingsuil'cient to insure that the impression-making member in the machine inwhich printing devices of this character are utilized will cooperatewith the relief faces of the type characters to produce impressionswithout coming in contact with the exposed faces of the retainingdevices, and it is this that insures against objectionable impressionsbeing made from `the retaining devices for the plate as P.

While the printing device carrier as illustrated in the accompanyingdrawings embodies two longitudinally extending panels for the purpose ofimparting reenforcement thereto, it will be understood that one or theother of such panels might be eliminated without departing from thepurview of the present invention for in many instances one such panelwill impart suicient longitudinal reenforcement to the frame. It will'.be understood, however, that if one such panel :is omitted it will notbe essential that there be any modication of the flanges as 22 and 23 onAthe printing plate as P nor need there be any substantial modificationof the retaining means on the carrier adapted for cooperation with suchflanges. The reason for this is .that even if one of the panels I8 or 20is omitted the printing plate such as the plate P may still be insertedinto a frame or carrier as F having but one such panel. In such aninstance the face of the flange 22 or 23 that would normally cooperatewith a panel as 20 or I8 will merely be spaced from the underlyingportion of the bottom of the pocket P2 in the instance where the panel20 or I8 is omitted. In this respect, however, it will be advantageousto provide a panel as I8 for such a panel is effective to reenforce thecarrier along the lower edge thereof, and this, in cooperation with thelongitudinal reenforcement imparted to the frame or carrier as aforesaidalong the upper edge thereof, will, in most of the uses to which aprinting device of the character t0 which this invention pertains,impart sufcient reenforcement to the frame.

Further with respect to the foregoing, however, it will be understoodthat if, for example, a panel as 2D is omitted, then the configurationimparted to a flange as 22 that is adapted to cooperate with such panelmay be omitted in the event that this should be desired, and in such aninstance the printing plate would embody but one flange having bothfaces thereof spaced from opposite faces of the printing plate. Since,however, it is advantageous to include two such flanges on the printingplate, it is preferred that the novel printing plate of this inventionbe formed in this manner.

It will be manifest from the foregoing description that I have provideda printing device which is effectively reenforced longitudinally thereofboth along the upper and lower marginal portions thereof. This isaccomplished in accordance with the hereinabove described preferred formof my invention by forming longitudinally extending panels in thecarrier of the printing device in position to cooperate withcomplementarily formed portions on a printing plate adapted to beinstalled on the carrier. Moreover, I have so arranged a printing platethat is adapted to be used on a carrier of the aforesaid character thatmarginal edges are afforded thereon which are not only adapted tocooperate with reenforcing panels afforded on the carrier but which arealso so arranged as to so cooperate with retaining means afforded on thecarrier that are adapted for cooperation therewith that impressions maybe made from the relief faces of type characters embossed on the platewithout the likelihood of impressions being made from the retainingmeans that overlie opposite marginal portions of the plate.

Many other advantages of the present invention will be apparent to thoseskilled in the art from the accompanying drawing and foregoingdescription and it is to be understood that While I have illustrated anddescribed a preferred embodiment of my invention, this is capable ofvariation and modification and I therefore do not wish to be limited tothe precise details set forth, but desire to avail myself of suchchanges and alterations as fall within the purview of the followingclaims:

I claim:

l. A at printing plate of not substantially more than .030 in thicknesson which type characters may be embossed to appear in relief on one faceand in intaglio on the opposite face thereof, and a swaged marginalportion of reduced thickness extended along at least one marginal edgeof the plate embodying a rounded free edge and having rounded corners atthe free ends thereof, said portion including oppositely arranged facesparallel to the faces of the plate that are respectively disposed to liebelow the planes of the opposite faces of the plate.

2. A flat printing plate of not substantially more than .030" inthickness on which type characters may be embossed to appear in reliefon one face and in intaglio on the opposite face thereof, and swagedmarginal flanges of reduced thickness extended along opposite edges ofsaid plate each embodying rounded free edges and having rounded cornersat the free ends thereof, each such flange including substantiallyparallel vfaces that are respectively disposed below and parallel withthe opposite faces of said plate.

3. A printing device including a carrier, an embossable printing plate,means for securing the plate on one face of the carrier and includingretaining means adapted to overlie at least selected of the marginalportions of the plate, said plate being formed from sheet material andincluding a rabbeted flange of reduced thickness, along at leastselected marginal edges thereof that are adapted to be disposed under atleast selected of the retaining means, each such selected of theretaining means being formed to project over and closely overlie theflange on the plate that is adapted to be disposed thereunder, and aformed portion in said carrier affording a reenforcement therefor anddisposed to underlie a ange oi reduced thickness along a marginal edgeof the printing plate When said plate is installed in said carrier, suchflange embodying a configuration that is complementary to said formedportion in the carrier.

4. A printing device including a carrier, an embossable printing plate,means for securing the plate on one face of the carrier and includingretaining means adapted to overlie opposite marginal portions of theplate, the opposite marginal portions of the plate that are adapted tounderlie the retaining means for such opposite marginal portions of theplate being rabbeted to provide flanges of reduced thickness, theretaining means adapted for cooperation with such portions of theplatefbeing formed to closely overlie such flanges, and a formed portionin said carrier aording a reenforcement therefor and disposed tounderlie one of the rabbeted flanges on the plate When said plate isinserted into said retaining means, the ralobeted flange of said platethat overlies the formed portion in the carrier being so formed as to becomplementary to the formed portion in the carrier.

5. A printing device carrier adapted to have at least one printing platemounted thereon and including means for securing the plate thereto,comprising a carrier body portion and a formed portion in said carrieralong one marginal edge thereof and above which a marginal edge of theplate is adapted to be disposed when the plate is mounted on thecarrier, said formed portion having elements out of the plane of thebody portion constituted and arranged to aiTord a reenforcement for saidbody portion of said carrier along said edge thereof.

6. A printing device carrier adapted to have at least one printing platemounted thereon and including means for securing the plate thereto, saidcarrier having beads formed along opposite marginal edges thereof andone of said beads having a conguration imparted thereto that is eiectiveto reenforce the marginal portion of the carrier along which such beadis disposed, such bead being located along the edge of the carrieropposite that along which the marginal portion of the printing plate isadapted to be disposed, the other of the lbeads being formed to overliea marginal portion of the printing plate, and a formed portion on saidcarrier underlying the bead adapted to overlie the marginal portion ofthe printing plate, said formed portion being constituted and arrangedto afford a support for an edge of said plate and a structuralreenforcement for the portion of the carrier in Which it is provided.

7. A printing device carrier adapted to have at least one printing platemounted thereon and including means for securing the plate thereto, saidcarrier having beads formed along opposite marginal edges thereof andone of said beads having a configuration imparted thereto that iseiTective to reenforce the marginal portion of the carrier along whichsuch bead is disposed, such bead being located along the edge of thecarrier opposite that along Which the marginal portion of the plate isadapted to be disposed, the other of the beads being formed to overlie amarginal portion of the printing plate, and a raised panel on thecarrier underlying .the bead adapted to overlie a marginal edge of theprinting plate, said raised panel being adapted to underlie and supportthe same marginal edge of a plate and including a rib Which is effectivein cooperation Wi-th the panel and the bead under which the panel isdisposed to reenforce the carrier.

8. A printing device carrier adapted to have mounted thereon at leastone printing plate having a flange along at least one marginal edgethereof that has at least one face thereof offset from and parallel witha face of the plate, said carrier comprising means for securing theplate thereto that include an inturned bead along one edge of thecarrier and at least one raised panel on the carrier spaced from andparallelY with said inturned bead and disposed thereon in a position tounderlie the flange on the printing plate when the same is mounted onthe carrier, said raised panel providing a supporting surface for theange on the printing plate and providing a rifb projecting out of theplane of the carrier which with the panel affords a reenforcement forthe carrier.

WTLMER H. NAU.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 1,026,244 Duncan May 14, 19121,872,173 Paschali Aug. 16, 1932 834,795 Laycock Nov, 13, 1906 1,928,161Wood Sept. 26,1933 478,750 Horgan July 12, 1892 1,550,259 Jackson Aug.18, 1925 1,921,202 Mungen Aug. 8, 1933 1,951,596 Creesy Mar. 20, 19342,039,074 Farrington Apr. 28, 1936 1,087,223 Duncan Feb. 17, 1914146,454 Hughes Jan. 13, 1874 743,759 Severy Nov. 10, 1903 2,074,587Illium Mar. 23, 1937 1,680,819 Steindorf Aug. 14, 1928 1,302,850 RandMay 6, 1919 FOREIGN PATENTS Number Country Date 330,432 Great BritainJune 12, 1930

